https://scholars.lib.ntu.edu.tw/handle/123456789/611504
標題: | Nanoporous Materials Can Tune the Critical Point of a Pure Substance | 作者: | Braun E. Chen J.J. Schnell S.K. Lin L.-C. Reimer J.A. Smit B. LI-CHIANG LIN |
關鍵字: | Adsorbates;Benzene refining;Crystalline materials;Java programming language;Mesoporous materials;Molecules;Organometallics;Phase diagrams;Phase equilibria;Phase transitions;Porous materials;Adsorbate molecules;Adsorbed molecules;Isoreticular metal-organic frameworks;Metal organic framework;Molecular simulations;Nano-porous materials;NMR relaxometry;Spatially inhomogeneous;Microporous materials | 公開日期: | 2015 | 卷: | 54 | 期: | 48 | 起(迄)頁: | 14349-14352 | 來源出版物: | Angewandte Chemie - International Edition | 摘要: | Molecular simulations and NMR relaxometry experiments demonstrate that pure benzene or xylene confined in isoreticular metal-organic frameworks (IRMOFs) exhibit true vapor-liquid phase equilibria where the effective critical point may be reduced by tuning the structure of the MOF. Our results are consistent with vapor and liquid phases extending over many MOF unit cells. These results are counterintuitive since the MOF pore diameters are approximately the same length scale as the adsorbate molecules. As applications of these materials in catalysis, separations, and gas storage rely on the ability to tune the properties of adsorbed molecules, we anticipate that the ability to systematically control the critical point, thereby preparing spatially inhomogeneous local adsorbate densities, could add a new design tool for MOF applications. ? 2015 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84954388110&doi=10.1002%2fanie.201506865&partnerID=40&md5=3f542d7c902eb038a306dfadb4043c08 https://scholars.lib.ntu.edu.tw/handle/123456789/611504 |
DOI: | 10.1002/anie.201506865 |
顯示於: | 化學工程學系 |
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